From the last Sunday of March until the day before the last Sunday of October (when most of Europe and most of Canada are both on Daylight Saving Time) and from the first Sunday of November until the day before the second Sunday of March (when both Europe and Canada are on Standard Time), when it's 12 noon in England, it's 7 AM in Toronto. During the rest of the year, when it's 12 noon in England, it's 8 AM in Toronto.
The time zones of the world are set according to Greenwich Mean Time, from the Greenwich Observatory in England. If it is noon in Japan, it is 0300 or 3 o'clock in the morning in Greenwich.
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Singapore's time is 8 hours ahead of GMT (GMT +8); noon in greenwich would equate to 8pm in Singapore.
Houston is in the Central Time Zone, which is 6 hours behind Greenwich Mean Time. Therefore, if it is 12 noon in Greenwich, it would be 6 AM in Houston.
Noon Greenwich Mean Time in Greenwich (UTC/UTC+1) = 2 PM Eastern European Time in Kiev (UTC+2/UTC+3) 1 PM British Summer Time in Greenwich = 3 PM Eastern European Summer Time in Kiev
4:00a.m.
Noon Greenwich Mean Time in Greenwich (UTC/UTC+1) = 2 PM Eastern European Time in Kiev (UTC+2/UTC+3) 1 PM British Summer Time in Greenwich = 3 PM Eastern European Summer Time in Kiev
time ball
If it is 12 noon at Greenwich (0 degrees longitude), then every 15 degrees of longitude corresponds to a one-hour time difference. Therefore, if you are 30 degrees east of Greenwich, the time would be 2:00 PM.
When it is 12 noon at Greenwich (0 degrees longitude), it is 20 degrees west of Greenwich. Since the Earth rotates at 15 degrees per hour, you can calculate the time difference by dividing 20 degrees by 15, which equals approximately 1 hour and 20 minutes. Therefore, it would be 10:40 AM at the location that is 20 degrees west when it is 12 noon at Greenwich.
For the most part, time zones don't change north to south. It would still be noon.
Darwin is (Greenwich Mean Time) GMT +9.5 hours, ie. 9.5 hours ahead of Greenwich, England. Perth is (Greenwich Mean Time) GMT +8 hours, ie. 8 hours ahead of Greenwich, England. If it is noon in Perth, it is 1:30pm in Darwin.